Sol_140P5426R00009_Attach__0001-SOW.pdf

SAN JUAN NATIONAL HISTORIC SITE

OLD SAN JUAN, PUERTO RICO

Replace Historical Doors at Santa Rosa Bastion

Casemates

PMIS 347194A

STATEMENT OF WORK

APRIL 2026

NATIONAL PARK SERVICE

SOUTHEAST REGION

SOUTH MAJOR ACQUISITION BUYING OFFICE

BACKGROUND

San Juan National Historic Site is one of the over 400 parks of the National Park Service. It includes Castillo San Felipe del Morro, Castillo San Cristóbal, most of the city walls, the San Juan Gate and Fort San Juan de la Cruz just across the entrance to the bay. The park’s mission is to protect, preserve, and interpret natural, cultural, and historical resources for the benefit and inspiration of present and future generations. There are over 1.5 million visitors annually.

OBJECTIVES

The purpose of this Statement of Work (SOW) is to provide services for woodwork of case mate doors at three casemates located at Santa Rosa Bastion. This project aims to ensure the preservation and restoration of historically significant structures while maintaining compliance with federal preservation standards and guidelines. The work involves careful removal of existing doors, fabrication, and installation of historically appropriate replacements, and addressing any structural adjustments required to support the installation. This SOW outlines the tasks and responsibilities for successful completion of the project.

PLACE OF PERFORMANCE

• Work is to be performed at Santa Rosa Bastion located at the esplanade of Castillo

San Felipe (El Morro grounds).

• Latitude: 18°28'11.2"N, Longitude: 66°07'14.7"W

The San Juan National Historic Site is in the historic district on the islet of old San Juan.

PERIOD OF PERFORMANCE

The work shall be provided within 120 days from the Notice to Proceed.

Installation work will occur at locations stated in this document in section

PLACE OF PERFORMANCE.

The work must be during parks hours of operations from 7:00 am to 3:30 pm from Monday through Friday.

Working during federal holidays will be on a case-by-case basis.

Contractor shall submit baseline schedule within 30 days of NTP.

SCOPE OF WORK AND GENERAL REQUIREMENTS

• The Contractor shall provide all labor, materials, tools, equipment, supervision, and incidentals necessary to complete the removal, fabrication, and installation of six

(6) wood casemate doors at three (3) casemates located at Santa Rosa Bastion, Castillo San Felipe del Morro, San Juan National Historic Site.

• All work shall comply with applicable federal, Commonwealth of Puerto Rico, and local codes, as well as National Park Service (NPS) Cultural Resource Preservation standards.

• The Contractor shall coordinate all activities with the Contracting Officer’s Representative (COR) and provide a minimum of 24-hour advance notice prior to deliveries or major work activities. A qualified superintendent shall always be present on-site during active work.

PRE-CONSTRUCTION REQUIREMENTS

• Site Verification and Assessment

The Contractor shall conduct a detailed field investigation prior to fabrication to:

• Verify existing field conditions and dimensions of all door openings.

• Assess structural integrity of adjacent masonry and anchorage points.

• Identify conflicts, deficiencies, or required modifications.

• Submit a written Site Assessment Report with recommendations for COR approval prior to proceeding.

• Submittals (Pre-Approval Required)

The Contractor shall submit the following for approval prior to fabrication:

• Shop drawings (dimensions, joinery, hardware, anchorage details)

• Product data for all materials and coatings

• Finish samples (minimum 6” x 6”) for stain and protective coatings

• Hardware specifications

• Work schedule and sequencing plan

• No fabrication shall begin without written approval from the COR.

REMOVAL OF EXISTING DOORS

The Contractor shall:

• Carefully remove six (6) existing double casemate doors without damaging adjacent historic fabric.

• Provide rigging and crane services as required for safe removal.

• Transport and dispose of removed doors offsite in accordance with applicable regulations.

• Protect surrounding masonry, finishes, and historic materials during removal operations.

• Contractors shall provide temporary weatherproof barriers, not just security.

• Temporary security measures shall be installed at the end of each workday if openings remain unsecured.

FABRICATION OF NEW DOORS

The Contractor shall fabricate six (6) replacement doors that replicate the historic character of the originals.

Wood

• Replace frames and doors with historically accurate replicas, using wood and other materials consistent with the colonial style of the historic site to maintain the building's historic integrity, and construct new frames and doors to follow the existing pattern, except for wood type and material.

• Use solid pieces of FSC certified African Mahogany wood for all frames and doors sourced from a reputable supplier with a proven track record of providing high-quality materials and confirm the source and quality of the wood prior to purchase.

• Wood shall be kiln-dried to 10–12% moisture content.

• Carefully select defect-free wood, ensuring it is aged and/or dried to reduce shrinkage, and treat it to be water-resistant, protecting against mildew and UV damage.

• Clean, sand, and remove dust from the surface to be finished, then apply the necessary coats of smooth, even coat and/or layer of sanding sealer, wood stain, lacquer, or as needed finish coats to achieve a very smooth finish with a uniform color depth and appearance in all lighting conditions.

• Obtain approval from the Contracting Officer Representative (COR) for staining of the frames and doors before work begins, and provide a surface finish free of defects, irregularities, and physical damage.

• Sand all finish carpentry smoothly, fill all blemishes so that no graining, knots, or holes are visible, and construct and install frames and doors to provide the best weather-tight seal to keep rain out. The replacement components shall be properly fit to the existing openings.

• Coat all wood with a minimum of two coats of Benjamin Moore Arborcoat Exterior Waterproofer clear water-resistant sealer or COR equivalent, applying coating per manufacturer requirements with a minimum of 3 mil profile application, and obtain park approval before application.

• Contractors will provide their own samples, ensuring they meet requirements for exterior use, and treat wood to prevent termite infestation, using a chemical treatment such as borate or COR approved alternative to protect the wood from insects.

Joinery:

• Mortise & tenon (recommended for historic accuracy)

Installation and Alignment

• During installation, the contractor shall ensure that doors are level and plumb, using appropriate tools and techniques to achieve proper alignment.

• The contractor shall follow the historic capuchinos installation process, ensuring the doors maintain their historical accuracy while ensuring proper function and alignment.

• Capuchinos should align with the historic design and evenly distribute the weight of the door for proper function.

• The depth and dimensions of the mortises shall be accurate to accommodate the capuchinos without gaps or protrusion.

• Carefully align the capuchinos on the door with those on the door frame and join them together to form the hinge mechanism. Make any necessary adjustments to ensure smooth operation and proper alignment.

• Contractor shall make any necessary adjustments to the capuchinos or the door installation to ensure the door is level, plumb, and operates smoothly. Contractor shall test the door's operation, checking and addressing any issues such as binding or sagging.

• Final adjustment period (minimum 5 days observation for alignment issues.

Masonry

• Install the frames and doors in a way that requires minimal removal of masonry fabric or plaster. If fitting the fabricated wood tight up against the plaster necessitates a choice between breaking bricks or other hidden historic elements and trimming wood, the contractor must trim wood and then recoat it with COR approved clear water-resistant sealer with minimum profile application.

• The contractor shall fill holes, cracks, gaps with compatible patching material; finish patch to match surrounding surface shape, texture and color.

Mortar Materials:

• Restaura Natural Hydraulic Lime: CALIX NHL 3.5 white or approved equal.

• Must be cured for a minimum of one (1) year.

• COR or NPS mason determined by the COR shall verify the consistency of the hydraulic lime to ensure the product has been cured for a minimum of one (1) year.

• If the Park determines that the hydraulic lime has not been cured for sufficient time, the park shall agree to a one-to-one exchange of the contractor's hydraulic lime with the park's sufficiently cured hydraulic lime, provided that the quantity and quality of the products are equal.

• The one-to-one exchange shall be at no cost to the Park nor the contractor.

Sand:

• It must originate from freshwater river sand. Ocean sand will not be accepted.

Water:

• Clean, clear, potable water.

• Pigments: Not required and not permitted unless mortar analysis reveals the presence of pigments in the historic mortars.

• After installing the doors with new frames, masonry patching will be required to close the openings between the frames and masonry walls. The contractor shall ensure a smooth finish, repairing all affected areas to their original condition, color, and appearance, using materials compatible with the masonry structure, fabric and integrity.

Hardware Requirements

• Historical hardware will be replaced in-kind. Custom castings shall be provided to match the existing design.

• Manufacturer's stock castings may be considered if deviations are minor and do not alter the design concept, subject to COR approval.

• All metal hardware shall be made of C9540 Aluminum Bronze grade alloy and coated with lead-free, matte black epoxy to protect against ultraviolet rays, chemicals, oils, alkalis, food acids, water immersion, abrasion, and high-pressure wash-downs.

• When clinching C9540 Aluminum Bronze grade alloy materials into the backside of frames, the contractor shall avoid methods like hammering down into the board, unless approved by the COR. The contractor must submit their chosen clinching method and consult with the alloy manufacturer to determine the most suitable approach, such as specialized clinching tools, manual presses, or induction heating using electromagnetic fields.

• All exposed metal hardware shall receive a lead-free coating of Sherwin-Williams Macropoxy 646 matte black coating or a COR-approved equivalent. Metal hardware must be touched up after clinching to repair any damage.

• Metal hardware resembling 18th-century locks, hinges, and door jambs shall be replaced with designs consistent with those currently in use.

• The contractor shall provide anchorage devices and fasteners as needed to secure decorative metal elements to the existing construction.

• All hardware components must be designed to match the historic appearance currently in use and will be verified for compliance before acceptance.

• The contractor is responsible for installing door hardware, including locks, sliding bolts, door handles, and all accessories, to match the existing hardware's appearance.

• The contractor shall furnish all required materials.

• Cleanup residue shall not be left on adjacent finished surfaces, trim plates, fixtures, or grilles.

• When necessary, the contractor shall provide and replace existing locks specific to

NPS SAJU Door Locks and Hardware.

Fabrication Requirements

• Doors shall be constructed true to line, square, and plumb

• Surfaces shall be sanded smooth; voids, cracks, and defects filled with compatible materials

• Finish shall match approved sample and provide uniform color and texture

• Install Government-furnished locking systems (e.g., BEST lock cores) and accessories

• Protection of Historic Resources

• All fabrication and installation methods shall avoid damage to historic masonry and adjacent features

• No irreversible alterations shall be made without prior approval

FINISHING

• Clean and prepare all wood surfaces prior to finishing

• Application:

• Sanding Sealer

• Wood stain (color approved by COR)

• Protective topcoat (lacquer or equivalent marine-grade finish)

• Final finish shall:

• Be smooth, uniform, and free of defects

• Provide long-term durability in a coastal environment

• Match approved samples under varying light conditions

CONSTRUCTION MANAGEMENT AND SITE CONTROL

• Maintain a clean, safe, and organized worksite always

• Provide:

• Temporary barriers and signage

• Protection of public access routes

• Daily cleanup and debris removal

• Restrict work areas using fencing or barricades approved by the COR

• The Contractor shall:

• Limit staging to designated areas

• Prevent damage to roads, utilities, and adjacent structures

• Repair any damage at no additional cost to the Government

QUALITY CONTROL

• The Contractor shall:

• Implement a Quality Control Plan (QCP)

• Conduct daily inspections and maintain Quality Control Reports

• Ensure all work meets contract requirements and approved submittals

• Correct deficiencies promptly at no additional cost

PROJECT CLOSEOUT

Upon completion, the Contractor shall:

• Remove all equipment, materials, and debris from the site

• Provide:

o As-built drawings o Warranty documentation o Final inspection and punch list completion o Deliver a fully operational and secure installation

CONTRACTOR RESPONSIBILITIES (SUMMARY)

The Contractor is responsible for:

• All mobilization and demobilization

• Permits, licenses, insurance, and fees

• Supervision and skilled labor

• Protection of historic resources

• Coordination with NPS staff

• Compliance with all safety and environmental regulations

• No additional compensation will be provided for work which is not explicitly authorized by the Contracting Officer.

GOVERNMENT FURNISHED PROPERTY

N/A

SAFETY

• When working special attention should be given to good hygiene practices, proper use of personal protective equipment.

• Physical hazards include slips, trips, and falls due to slippery and sloping surfaces; limited access and egress; corroded ladder rungs; and obstructions by piping and other structures. There is also the risk of receiving punctures and cuts from sharp edges.

Location hazards

• The location of this work may expose the contractor’s personnel to high heat and humidity. This contractor is to follow at a minimum all OHSA rules and procedures.

• While working in high areas scaffolding might be needed, contractor personnel must comply with fall protection equipment.

Safety Plan

• A required safety plan must be submitted and approved before any work is to begin. This plan shall identify any hazards related to the work and provide measures to follow to mitigate risk.

• The Contractor shall immediately report to the COR all accidents resulting in employee injury or death or damage to property while performing this contract.

• The Park safety officer has the authority to issue restraint or cease-and-desist orders to the Contractor when violations or unsafe acts are present and threaten Government and Contractor employees or damage to Government property.

CULTURAL RESOURCES

An archeological monitor may be present at the work site. If archeological resources are damaged at the project site while the archeological monitor is present or absent, all work directly affecting the discovery must stop immediately, and the damage must be reported to the COR. Contractor shall move on to work on other portions of the scope that do not directly affect the archaeological discovery with the approval of the COR.

SECURITY CONSIDERATIONS

The following mitigation measures shall be implemented to minimize the impacts of construction activities with:

No door will be allowed to remain open overnight at any time. Area of work will be closed off to the public for safety. Entrance will be closed at the end of each calendar day.

Construction sites will be limited to the smallest feasible area. Ground disturbance and site management will be carefully controlled to prevent undue damage to vegetation, soil, and archeological resources and to minimize air, water, soil, and noise pollution.

Staging is limited in or near the construction area. Construction equipment and material storage shall be in previously disturbed areas near the construction site. All staging areas shall be returned to pre-construction conditions once construction is complete.

Site Access - Contractor properly identified employees will be the only ones allowed on site and shall follow federal code of conduct during work hours.

Construction zones shall be fenced with approved construction barrier fencing, plastic or portable fencing, before any construction activity. The fencing shall define the construction zone and confine activity to the minimum area required for construction.

Workers will be instructed to avoid conducting activities beyond the construction zone as defined by the construction zone fencing.

Parking of vehicles shall be limited to existing roads, in legally designated areas, and within approved staging area(s). Confine all operations to work limits of the project. Prevent damage to natural surroundings. Restore damaged areas outside the work limits, repairing or replacing damaged trees and plants, at no additional expense to the National Park Service.

Site Disturbance - Minimize the construction limits of the project to reduce the project’s impact on the site.

TRAVEL

Contractor shall be responsible for all travel related expenses for this project, including mobilization of equipment, tools, materials, manpower, lodging, meals, and per diem.

SPECIAL MATERIAL REQUIREMENTS

N/A

OTHER UNIQUE REQUIREMENTS & CONSIDERATIONS

The contractor shall take any necessary precautions to protect and preserve all-natural resources, cultural resources and all historic fabric, materials and structures that are in the park.

The Contractor is strongly encouraged to minimize waste by recycling or salvaging as much non-hazardous demolition waste as possible.

Hauling Restrictions - Follow all legal load restrictions in the hauling of materials.

Information regarding rules and regulations for vehicular traffic on park roads may be obtained from the Office of the Park Superintendent.

Weather Protection - When inclement weather is expected, provide temporary protection, for areas where roofing, siding, doors or other enclosing elements have been removed or have not been installed. Inspect protective coverings frequently to ensure that they are functioning properly.

Cleaning - Before scheduling the final inspection, remove all tools, equipment, surplus materials, and rubbish. Restore or refinish surfaces that are damaged due to work of this contract to original condition. Remove grease, dirt, stains, foreign materials, and labels from finished surfaces. Thoroughly clean building interiors. Pick up and remove all construction debris from the site. At time of final inspection, project shall be thoroughly clean and ready for use.

After NPS review is completed, incorporate comments, and submit 3 final sets of operation and maintenance data to the Contracting Officer.

Substantial Completion and Final Inspection - Submit written certification to the CO that the project, or designated portion of project, is substantially complete, and request a final inspection. Upon receipt of written request that project is substantially complete, the Contracting Officer will proceed with inspection within 10 business days of receipt of request or will advise the Contractor of items that prevent the project from being designated as substantially complete.

When work is determined to be substantially complete, a list of deficiencies ("Punch List") to be corrected before final acceptance might be prepared. The Contracting Officer will issue a Letter of Substantial Completion. If work is not determined to be substantially complete, the Contracting Officer will notify the contractor in writing. After completing work, the contractor shall resubmit certification and request a new final inspection. If the Contractor fails to complete the work within an established time frame, the Contracting Officer may either replace or correct the work with an appropriate reduction in the contract price or charge for re-inspection costs per the Inspection of Construction clause of the contract.

Acceptance of the work - After all deficiencies have been corrected, the Contracting Officer will issue a Letter of Final Acceptance.

QUALITY ASSURANCE REQUIREMENT

The contractor shall develop and maintain a quality program to ensure services are performed per commonly accepted commercial practices. The contractor shall develop and implement procedures to identify, prevent, and ensure non-recurrence of defective services. At a minimum the contractor shall develop quality control procedures addressing the critical areas identified in this statement of work. The government will periodically evaluate the contractor’s performance per the statement of work. All new equipment must conform to the manufacturer’s instructions and guidelines for installation and start-up.

While performing work, the contractor shall follow the latest applicable versions of the following:

• Federal, state and local codes, standards and policies for Environmental Protection Authority requirements.

• Occupational Safety and Health Administration (OSHA) requirements.

• Shall meet Secretary of Interior Standards for Historic Preservation and be in compliance with Section 106 National Historic Preservation Act (NHPA)

• NPS Reference Manual 10A and 10B

The quality of all work shall be the responsibility of the Contractor. Testing, if required, shall be the responsibility of an independent testing laboratory. Inspect and test all work as needed to ensure that the quality of materials, workmanship, construction, finish, and functional performance is following applicable specifications and drawings.

All affected areas must be restored to their original condition from before the work began.

Any damages will be fixed and repaired at no cost to the government. Any damage to floor, or walls will be the contractor’s responsibility to repair them to match existing materials.

PERSONNEL

Contracting Officer: TBD

Contracting Officer Representative (COR): TBD

Park Facility Manager: TBD

FACILITY PERFORMANCE

All work performed shall follow applicable laws, regulations, and NPS policies and guidelines, http://www.nps.gov/dscw/laws-policies.htm.

All work shall be installed per the manufacturer’s recommendations. When Contract Documents require compliance with manufacturer’s printed instructions, provide one https://www.nps.gov/dscw/upload/ReferenceManual10A_April2001_110817_AF.pdf https://www.nps.gov/orgs/1804/upload/ReferenceManual10B_Nov2009_V508.pdf http://www.nps.gov/dscw/laws-policies.htm complete set of instructions to Contracting Officer and keep another complete set of instructions at the project site until substantial completion.

DELIVERY, STORAGE AND HANDLING

If units are shipped via commercial freight, open crates and inspect each slab in the presence of the driver. Note any and all damage, and do not accept shipment if damage is present. Claims due to shipping damage must be submitted to the freight carrier.

Handle, transport and store units to prevent damage to materials or structure. Handle with care to prevent damage to corners and edges.

APPENDIX A

APPENDIX B